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The secret to outstanding achievement is not talent but a special blend of passion and persistence called grit.

Small changes in the environment can have big effects on behavior.

It is hard to read a newspaper or watch a television newscast without encountering someone who has come up with a new 'solution' to society's 'problems.'

The organism does not perceive stimuli, but objects in their environments.

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一個(gè)人的死亡，與其說是他自己的事，不如說是生者的事。